1. How Large Skills Area and perimeter of irregular shapes
Life in 3D
How Large Skills
Area and perimeter of irregular shapes

2. To find the area of an irregular object:1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 65 66 67 68 69 70 71 72 73 74 75 76
To find the area of an irregular object:
Count the number of full squares
Count the number of squares that are half or more
Add these numbers together to get the total area of your hand, or any other irregular object
So using this grid the hand has an area of 76 squares.
Use cm² paper to find your areas

3. perimeter of an irregular object:
To find the
perimeter of an irregular object:
Place a piece of string (or shoe lace if you have no string) around the perimeter of the object .
Then measure the length of the string used with a ruler.